forked from OSchip/llvm-project
57 lines
1.4 KiB
C++
57 lines
1.4 KiB
C++
// Purpose:
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// This ensures that DW_OP_deref is inserted when necessary, such as when
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// NRVO of a string object occurs in C++.
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//
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// REQUIRES: !asan, lldb
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// UNSUPPORTED: system-windows
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// Zorg configures the ASAN stage2 bots to not build the asan
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// compiler-rt. Only run this test on non-asanified configurations.
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//
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// RUN: %dexter --fail-lt 1.0 -w \
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// RUN: --builder 'clang' --debugger 'lldb' \
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// RUN: --cflags "-O0 -glldb -fno-exceptions" -- %s
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//
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// RUN: %dexter --fail-lt 1.0 -w \
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// RUN: --builder 'clang' --debugger 'lldb' \
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// RUN: --cflags "-O1 -glldb -fno-exceptions" -- %s
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//
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// PR34513
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volatile int sideeffect = 0;
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void __attribute__((noinline)) stop() { sideeffect++; }
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struct string {
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string() {}
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string(int i) : i(i) {}
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~string() {}
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int i = 0;
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};
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string get_string() {
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string unused;
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string output = 3;
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stop(); // DexLabel('string-nrvo')
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return output;
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}
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void some_function(int) {}
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struct string2 {
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string2() = default;
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string2(string2 &&other) { i = other.i; }
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int i;
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};
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string2 get_string2() {
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string2 output;
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output.i = 5;
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some_function(output.i);
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// Test that the debugger can get the value of output after another
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// function is called.
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stop(); // DexLabel('string2-nrvo')
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return output;
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}
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int main() {
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get_string();
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get_string2();
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}
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// DexExpectWatchValue('output.i', 3, on_line='string-nrvo')
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// DexExpectWatchValue('output.i', 5, on_line='string2-nrvo')
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